Alright, let's work through 21736489 times 52670380 step by step
21736489 × 52670380 = 52670380 × (21736489)
+ 52670380 × 9 giving us 474033420
+ 52670380 × 80 giving us 4213630400
+ 52670380 × 400 producing 21068152000
+ 52670380 × 6000 that results in 316022280000
+ 52670380 × 30000 that equals 1580111400000
+ 52670380 × 700000 that equals 36869266000000
+ 52670380 × 1000000 that results in 52670380000000
+ 52670380 × 20000000 yielding 1053407600000000

= 1144869135495820
